LOINC Code 71772-8: Mitogen stimulated gamma interferon Qn (Bld)

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Mitogen stimulated gamma interferon. It is commonly used with the system or sample type Bld.

When is it used?

• Used in lab systems, EHRs, and clinical data exchange.
• May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
• Status: ACTIVE
• Order vs observation: Observation

What it does not mean

• The code identifies the observation or test, not the actual result.

Key facts

• Mitogen stimulated gamma interferon [Units/volume] in Blood
• Mitogen stimulated gamma interferon
• In the Quantiferon Gold test, the Mitogen-stimulated plasma sample serves as an IFN-gamma positive control for each specimen tested. A low response to Mitogen (<0.5 IU/mL) indicates an Indeterminate result when a blood sample also has a negative response to the TB antigens. This pattern may occur with insufficient lymphocytes, reduced lymphocyte activity due to prolonged specimen transport or improper specimen handling, including filling/mixing of blood tubes, or inability of the patient's lymphocytes to generate IFN-gamma.
• Arbitrary concentration; Blood; ID; IFN; IGRA; Infectious Disease; InfectiousDisease; Lung; Microbiology; Mitogen IGNF; Point in time; Pulmonary; Pulmonology; QFT; QNT; Quan; Quant; Quantiferon; Quantitative; Random; Respiratory; WB; Whole blood

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Frequently asked questions